<template>
  <view>
    <!-- 轮播图 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item, index) in swiperList" :key="index">
        <navigator :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id" class="swiper-item"><image :src="item.image_src"></image></navigator>
      </swiper-item>
    </swiper>
    <!-- 分类导航 -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item, index) in navList" :key="index" @click="navClick(item)"><image :src="item.image_src"></image></view>
    </view>
    <!-- 楼层区域 -->
    <view class="floor-list">
      <view class="floor-item" v-for="(item, index) in floorList" :key="index">
        <!-- 楼层标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片 -->
        <view class="floor-img-box">
          <!-- 左侧大图片 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{ width: item.product_list[0].image_width + 'rpx' }" mode="widthFix"></image>
          </navigator>
          <!-- 右侧小图片 -->
          <view class="right-img-box">
            <navigator :url="item2.url" class="right-img-item" v-for="(item2, index2) in item.product_list" :key="index2" v-if="index2 !== 0">
              <image :src="item2.image_src" mode="widthFix" :style="{ width: item2.image_width + 'rpx' }"></image>
            </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
export default {
  data() {
    return {
      swiperList: [], //轮播图数组
      navList: [], //分类导航列表
      floorList: [] //楼层数据列表
    };
  },
  onLoad() {
    this.getSwiperList();
    this.getNavList();
    this.getFloorList();
  },
  methods: {
    // 点击第一项，切换到分类页面
    navClick(item) {
      if (item.name === '分类') {
        uni.switchTab({
          url: '/pages/cate/cate'
        });
      }
    },
    async getSwiperList() {
      const { data } = await uni.$http.get('/api/public/v1/home/swiperdata');
      // 请求失败
      if (data.meta.status !== 200) return uni.$showMsg();
      this.swiperList = data.message;
    },
    async getNavList() {
      const { data } = await uni.$http.get('/api/public/v1/home/catitems');
      if (data.meta.status !== 200) return uni.$showMsg();
      this.navList = data.message;
    },
    // 获取楼层列表
    async getFloorList() {
      const { data } = await uni.$http.get('/api/public/v1/home/floordata');
      if (data.meta.status !== 200) return uni.$showMsg();
      // 数据 url 处理
      data.message.forEach(floor => {
        floor.product_list.forEach(prod => {
          prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1];
        });
      });
      this.floorList = data.message;
    }
  }
};
</script>

<style lang="scss">
swiper {
  height: 330rpx;
}
.swiper-item,
image {
  width: 100%;
  height: 100%;
}
.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;
  .nav-item {
    width: 128rpx;
    height: 140rpx;
  }
}
.floor-title {
  height: 60rpx;
}
.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}
</style>
